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EMPLOYEE BENEFIT PLANS (Details) - United States - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Company match to employee contributions 50.00%    
Percentage of salary which is matched 4.00%    
Employer contributions to 401(k) plan $ 1.7 $ 1.8 $ 0.2